SELinux: Allow drm related access to persist partition.
SELinux: Allow drm related access to persist partition.

This patch address the following denials:
     avc:  denied  { write } for  pid=234 comm="qseecomd" name="acGSIRU1TX-2o-nJ69e1aFGgUxE_" dev="mmcblk0p16" ino=25 scontext=u:r:tee:s0 tcontext=u:object_r:persist_drm_file:s0 tclass=dir
     avc:  denied  { read } for  pid=234 comm="qseecomd" name="/" dev="mmcblk0p16" ino=2 scontext=u:r:tee:s0 tcontext=u:object_r:persist_file:s0 tclass=dir
     avc:  denied  { write } for  pid=234 comm="qseecomd" name="8QWshcUrcSxAmfaeVpzjb3LKrdQ_" dev="mmcblk0p16" ino=26 scontext=u:r:tee:s0 tcontext=u:object_r:persist_drm_file:s0 tclass=file

Change-Id: I07d1bf7004f969ed5b23712e5d191fe75ad8246a
Signed-off-by: rpcraig <1909bfd776bc2cd2d9a899cebe8317e7a729b473@tycho.ncsc.mil>

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead